US20200170821A1 - Orthosis joint - Google Patents
Orthosis joint Download PDFInfo
- Publication number
- US20200170821A1 US20200170821A1 US16/783,601 US202016783601A US2020170821A1 US 20200170821 A1 US20200170821 A1 US 20200170821A1 US 202016783601 A US202016783601 A US 202016783601A US 2020170821 A1 US2020170821 A1 US 2020170821A1
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- US
- United States
- Prior art keywords
- base body
- receiving element
- orthosis joint
- orthosis
- receiving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 210000002683 foot Anatomy 0.000 description 10
- 238000005253 cladding Methods 0.000 description 8
- 230000006978 adaptation Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 210000003127 knee Anatomy 0.000 description 3
- 210000003423 ankle Anatomy 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 210000003414 extremity Anatomy 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 208000027502 Ankle fracture Diseases 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 210000002105 tongue Anatomy 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
- A61F5/0102—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations
- A61F5/0127—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations for the feet
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
- A61F5/0102—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations
- A61F5/0123—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations for the knees
- A61F5/0125—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations for the knees the device articulating around a single pivot-point
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
- A61F5/0102—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations
- A61F2005/0132—Additional features of the articulation
- A61F2005/0165—Additional features of the articulation with limits of movement
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
- A61F5/0102—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations
- A61F2005/0132—Additional features of the articulation
- A61F2005/0165—Additional features of the articulation with limits of movement
- A61F2005/0167—Additional features of the articulation with limits of movement adjustable
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
- A61F5/0102—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations
- A61F2005/0132—Additional features of the articulation
- A61F2005/0169—Additional features of the articulation with damping means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
- A61F5/0102—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations
- A61F2005/0132—Additional features of the articulation
- A61F2005/0179—Additional features of the articulation with spring means
Definitions
- the invention relates to an orthosis joint having a base body which comprises a receptacle for a proximal component, a bearing point for a distal component arranged pivotably on the base body, and limit stops or spring elements which act on the distal component.
- An orthosis joint of this kind can advantageously be used in particular on orthoses of lower extremities, such as an ankle-foot orthosis (AFO) or a knee-ankle-foot orthosis (KAFO), but it is not limited to this intended use.
- Orthoses serve to support the movement of natural limbs or to stabilize the latter.
- support structures in the form of shells or rails are generally provided which are secured to the limbs.
- joints are provided between the support devices in the area of the natural joints and permit relative movement.
- the movement can be limited in terms of its direction or in terms of its extent if this is deemed useful from the therapeutic point of view.
- the movement can be opposed by a resistance, or restoring forces can be applied such that a return to an initial position takes place or is at least facilitated.
- DE 10 2010 014 334 A1 relates to an orthosis joint with two functional means for forming two limit stops.
- the functional means are designed as a cup spring arrangement and are arranged in spring channels.
- the spring channels are formed in the base body and act on a stirrup arranged pivotably on the base body.
- the pretensioning of the cup spring arrangement can be modified via an adjusting element that is screwed into the spring channel.
- U.S. Pat. No. 4,489,718 relates to a knee orthosis joint via which the maximum attainable knee angle can be adjusted.
- a continuous channel is arranged in a base body, in which continuous channel two springs are arranged which engage on a pin of a pivot part mounted in an articulated manner on the base body.
- U.S. Pat. No. 4,771,768 relates to an ankle orthosis for treatment of ankle fractures.
- a foot part is secured in an articulated manner on a below-knee rail.
- a base body is arranged on the below-knee rail, in which base body two metal pins are inserted that can be moved toward or away from projections on the foot part via adjustment screws. The extent of movement and the maximum attainable ankle angle can be adjusted via these metal pins.
- a problem of the prosthesis joints known from the prior art is the fact that they are designed specifically for their respective intended use. It is not possible, or it is possible only with considerable effort, to individually tailor the orthosis joint and adapt it to the specific user and, if appropriate, to any progress that is made in therapy.
- the object of the present invention is to make available an orthosis joint that can be easily tailored to the individual.
- the orthosis joint having a base body which comprises a receptacle for a proximal component, a bearing point for a distal component arranged pivotably on the base body, and limit stops or spring elements which act on the distal component, provision is made that at least one receiving element, in or on which a functional element interacting with the distal component is arranged, is releasably secured to the base body.
- the limit stops or spring elements arranged therein are received completely in the base body and are guided therein
- a receiving element for a functional element is secured releasably on the base body, such that the receiving element is exchangeable and adaptable to the individual requirements of the user. It is thereby possible for different functional elements or also different configurations of one functional element, for example of a spring, to be received or guided in the receiving element, so as to permit easy adaptation to the particular requirements.
- the receiving element is advantageously reversibly secured with a form fit to the base body for example via a thread, which is provided correspondingly on the receiving element and on the base body. It is likewise possible to secure the receiving element via a bayonet catch or clips, resilient locking tabs or other form-fit elements.
- the receiving element can be designed as a sleeve with a thread in order on the one hand to secure the receiving element on the base body or on the other hand to position and adjust the functional element inside the receiving element.
- the functional element can be designed as a spring, spring assembly, damper, sensor or limit stop, or a combination of these.
- the respective receiving element is adapted in form and presentation to the respective functional element; if dampers, springs or spring assemblies are used, the receiving element serves as an external guide for the damper, the spring or the spring assembly.
- the sensor housing is the receiving element and optionally has interfaces for forwarding sensor data and securing devices for securing it to the base body.
- Limit stops that define the range of movement in the joint can likewise be arranged in the receiving element. For the adjustable positioning of the respective limit stops, provision is made that adjustment devices are provided on the receiving element, so as to be able to carry out adaptation without having to exchange the limit stop itself.
- a spring and a sensor can be arranged in series in order, as a module, to supply information concerning the applied force or the displacement path.
- serial spring-damper combinations can be used, or springs with different levels of stiffness can be arranged one after another in order to achieve a progressive characteristic curve.
- the functional element can be designed as an inductive sensor, which detects a displacement path permitted, for example, by springs, spring assemblies or dampers, such that the displacement path and/or an angle setting can be determined via the inductive sensor.
- the receiving elements and the functional elements can be designed as an integrated assembly, such that a modular structure of the orthosis joint can be easily obtained.
- Functional elements are integrated in the respective receiving element or are pre-installed, such that an adaptation and individualization of the orthosis joint can be easily effected by exchange of the functionalized receiving elements.
- receiving elements can be arranged one after another in series, for example by a screw connection or other form-fit elements such as a bayonet catch or locking connections.
- corresponding screws or form-fit elements are provided on the receiving elements that are intended to be coupled to each other, such that an outer thread can be screwed into an inner thread or the corresponding form-fit elements can be locked onto each other, in order either to lengthen the receiving elements for a correspondingly large functional element or to permit a combination of different functional elements with each other.
- the receiving element is advantageously inserted in a recess in the base body, in which recess form-fit elements for securing the receiving element are arranged.
- the form-fit elements can be designed as threads, a guide track for bayonet catches, resilient tongues, projections or the like.
- a channel leads in the direction of the distal component in order to establish an operative connection to the distal component, for example a shoulder of a joint part. Pins, bolts or other pressure elements can be guided through the channel in order to convey forces from the distal component to the functional element.
- the functional element acts directly on the distal component through the channel, for example by springs bearing directly on support surfaces of the distal component or by a limit stop striking a support surface when the maximum angle setting is reached. It is also possible that a sensor detects the position of the distal component relative to the base body through the channel or takes up the forces acting on the distal component. It is thereby possible, for example, to use the joint in a controlled orthosis and to obtain, by way of the sensors, information that is wanted concerning the state of movement, the nature of the movement and the like.
- the receptacle on the base body can be designed as a rail box in which an orthosis rail, for example for a below-knee part or an upper leg part, is secured. It can be secured by clamping and/or by a form-fit engagement, for example via a double screw connection and conically tapering side walls on the rails and/or on the rail box.
- the distal component can be designed as a rail, rail box, shell, foot stirrup or foot support.
- a foot support is understood as meaning components that engage under the foot, while foot stirrups are components that can also extend parallel to the foot; foot stirrups can end in a foot support.
- the receiving elements are advantageously arranged on both sides of the bearing point, such that the functional elements can be arranged efficiently both in terms of flexion and also extension.
- the receiving element can protrude beyond the contour of the base body such that, when the receiving element is not secured on the base body, it is possible to obtain a slim design of the base body and, therefore, of the whole orthosis.
- FIGS. 1-5 show various views of a base body without receiving elements
- FIG. 6 shows a variant of FIG. 1 , with a limit stop channel screwed in;
- FIG. 7 shows a sectional view of FIG. 6 ;
- FIG. 8 shows an exploded view of FIG. 6 ;
- FIG. 9 shows FIG. 8 in a sectional view
- FIG. 10 shows a sectional view according to FIG. 7 , with receiving elements screwed in on both sides;
- FIG. 11 shows an exploded view of FIG. 10 ;
- FIG. 12 shows a variant of FIG. 10 , with spring receptacles screwed in;
- FIG. 13 shows a sectional view of FIG. 12 ;
- FIG. 14 shows a perspective view of a base body with a sensor screwed in
- FIGS. 15 to 21 show plan views and sectional views of variants of an orthosis joint.
- FIG. 1 is a plan view showing a base body 10 of an orthosis joint with a receptacle 12 for a proximal component (not shown), for example an orthosis rail, and also a bearing point 13 for receiving a pivot shaft on which a distal component (not shown) can be secured pivotably.
- FIG. 2 shows the base body 10 in a view turned to the right. It will be seen that a slit 11 is formed in the base body 10 , which slit 11 serves to receive the distal component.
- the webs of the base body 10 which are arranged on both sides of the slit 11 , each have the through-bore for the pivot shaft and form the bearing point 13 for the distal component.
- FIG. 3 shows the base body 10 in a sectional view with the bearing point 13 and with the two upwardly directed arms of the lateral walls 121 , 122 of the receptacle 12 .
- the receptacle 12 is designed as a trough-shaped rail box and, on the bottom wall cut away, has recesses through which form-fit elements, for example screws, can be guided in order to secure an orthosis rail to the base body 10 .
- recesses 16 , 17 in the form of bores are present which, at the proximal end, have form-fit elements 160 , 170 that can be designed as inner threads or locking elements for a bayonet catch.
- the form-fit elements 160 , 170 can be designed as resiliently mounted locking units.
- channels 163 , 173 are provided which point in the distal direction, such that a free passage to the distal component (not shown) is possible.
- FIG. 4 also reveals the box-shaped design of the receptacle 12 with the bottom wall and the two forwardly protruding walls 121 , 122 .
- FIG. 4 likewise shows the form-fit elements 160 , 170 in the form of threads.
- FIG. 5 shows the continuous channels 163 , 173 , and likewise the slit 11 on the distal portion of the base body 10 .
- the base body 10 of the joint is shown with a fitted proximal component 20 in the form of an orthosis rail.
- the orthosis rail 20 is secured to the base body 10 via screws.
- two receiving elements 14 , 15 are secured to the base body 10 on both sides of the proximal component 20 .
- Cladding parts 40 are arranged around the receiving elements 14 , 15 in order to allow the orthosis joint to have the smoothest possible walls and a compact structure.
- FIG. 7 the base body 10 according to FIG. 6 is shown in a rotated sectional view.
- the two recesses 16 , 17 arranged symmetrically on both sides of the bearing point 13 can be seen, which recesses 16 , 17 open into the channels 163 , 173 .
- the receiving elements 14 , 15 are screwed into the threads 160 , 170 , as shown in FIG. 3 .
- the two claddings 40 are also fixed on the base body.
- FIG. 8 shows the variant of FIG. 6 in an exploded view.
- the claddings 40 have a configuration matching the contour of the base body 10 , such that the claddings 40 supplement the outer contour.
- the two receiving elements 14 , 15 of different length are screwed into the threads 160 , 170 .
- outer threads 140 , 150 are arranged on the distal ends of the receiving elements 14 , 15 .
- Shoulders are arranged on the proximal ends and are designed such that they bear on the upper edges of the claddings 40 , with the result that the claddings 40 are secured on the base body 10 as the receiving elements 14 , 15 are screwed in.
- FIG. 9 shows FIG. 8 in a sectional view.
- the sleeve-shaped receiving elements 14 , 15 have outer threads 140 , 150 at the distal end.
- the receiving elements 14 , 15 are provided with inner threads 141 , 151 such that functional elements (not shown) arranged in the receiving elements 14 , 15 are fixed therein and, if appropriate, can be pretensioned in the direction of the distal component.
- the claddings 40 have through-openings, as do the receiving elements 14 , 15 , such that a continuous and direct connection is present from the upper edge of the receiving elements 14 , 15 to the opening of the channels 163 , 173 .
- the shorter receiving element 15 is provided to receive a limit stop, while the longer receiving element 14 is provided to receive a spring assembly.
- FIGS. 10 and 11 show variants of FIGS. 7 and 9 , in which, instead of a long receiving element 14 serving as a spring channel, two receiving elements 14 , 15 of equal length and in the form of sleeves are screwed into the base body 10 . Both receiving elements 14 , 15 serve in the present case as a limit stop channel.
- FIGS. 12 and 13 show a variant of the invention in which, instead of two limit stops being screwed in as shown in FIGS. 10 and 11 , two spring channels serving as receiving elements 14 , 15 are screwed into the recesses 16 , 17 on both sides of the bearing point 13 .
- FIG. 14 shows a further variant of the invention in which, in the base body 10 , a sensor 70 serving as a functional element is screwed into a recess 16 .
- the sensor housing serves here as receiving element and has an outer thread, which is screwed into the inner thread 160 of the receptacle 16 .
- a ball 71 is arranged as a contact element which takes up forces from the distal component (not shown) and transmits them to the actual sensor element, which is designed for example as a pressure sensor and has a piezoresistive or capacitive action.
- the functional element 70 can be affixed to a strain gauge in order to determine whether and with what force the distal component 30 presses against the ball 71 .
- sensors 70 it is also possible for sensors 70 to be installed as functional elements on both sides, so as to record sensor data in each loading direction, in the case of an orthosis joint that is pivotable to both sides from an initial position.
- sensors 70 it is possible in addition to detect a ground contact, the strength of the ground contact, and also a toe-off.
- FIG. 15 shows an orthosis joint in two views with a base body 10 as shown in FIG. 1 .
- An orthosis rail serving as distal component 30 is mounted pivotably on the base body 10 , such that a pivotability about the bearing point 13 is provided.
- the distal component 30 forms, to both sides of the bearing point 13 , support surfaces 36 , 37 which are assigned to the channels 163 , 173 of the recesses 16 , 17 . It is thereby possible for functional elements, screwed into or otherwise secured in the recesses 16 , 17 , to be brought into direct contact with the support surfaces 36 , 37 of the distal component 30 .
- FIG. 16 shows an illustrative embodiment in which only one receiving element 15 is screwed into the recess 17 .
- a limit stop is provided which is modifiable in position on the limit stop 50 via the inner thread 150 (not shown for reasons of clarity) and via a corresponding outer thread. It is thereby possible to adjust the maximum attainable pivot angle of the base body 10 relative to the distal component 30 .
- FIG. 17 shows a side view and a sectional view of a variant of the invention which corresponds to the structure in FIG. 10 with two limit stops 50 screwed in. It will be seen that both limit stops 50 rest on the support surfaces 36 , 37 of the distal element 30 , such that the joint does not permit relative movement.
- FIG. 18 shows the variant of FIG. 12 with two screwed-in spring channels as receiving elements 14 , 15 .
- springs 60 as functional elements are arranged in each of the receiving elements 14 , 15 and act on the support surfaces 36 , 37 of the distal component 30 via balls 61 .
- the pretensioning of the springs 60 can be adjusted via stoppers 142 , 152 that can be screwed in.
- FIG. 19 shows the variant of FIGS. 6 to 9 in the assembled state.
- the receiving element 14 serves to receive a spring 60
- the opposite receiving element 15 serves to receive a limit stop 50 . It is thereby possible to permit a rotation about the bearing point 13 in the direction of the spring element 60 , while the limit stop 50 blocks a pivoting movement of the base body 10 in the clockwise direction.
- FIG. 20 shows the receiving elements 14 , 15 in a longer version compared to FIG. 18 . It will be seen from this that, by virtue of the modular structure, different springs 60 can be easily screwed into the base body 10 and can be fixed thereon. It is thereby possible to fit longer or stronger springs 60 , if so desired by the patients.
- FIG. 21 shows a combination of the embodiments of FIGS. 18 and 20 , where the left-hand receiving element 14 is shorter than the right-hand receiving element, springs 60 as functional elements are arranged in both receiving elements 14 , 15 , such that it is possible, in different pivoting directions starting from the initial position shown, to apply different spring forces against pivoting.
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- Health & Medical Sciences (AREA)
- Nursing (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Prostheses (AREA)
- Rehabilitation Tools (AREA)
Abstract
Description
- The invention relates to an orthosis joint having a base body which comprises a receptacle for a proximal component, a bearing point for a distal component arranged pivotably on the base body, and limit stops or spring elements which act on the distal component. An orthosis joint of this kind can advantageously be used in particular on orthoses of lower extremities, such as an ankle-foot orthosis (AFO) or a knee-ankle-foot orthosis (KAFO), but it is not limited to this intended use.
- Orthoses serve to support the movement of natural limbs or to stabilize the latter. For this purpose, support structures in the form of shells or rails are generally provided which are secured to the limbs. Except in the case of immobilization orthoses, joints are provided between the support devices in the area of the natural joints and permit relative movement. The movement can be limited in terms of its direction or in terms of its extent if this is deemed useful from the therapeutic point of view. In addition, the movement can be opposed by a resistance, or restoring forces can be applied such that a return to an initial position takes place or is at least facilitated.
- DE 10 2010 014 334 A1 relates to an orthosis joint with two functional means for forming two limit stops. The functional means are designed as a cup spring arrangement and are arranged in spring channels. The spring channels are formed in the base body and act on a stirrup arranged pivotably on the base body. The pretensioning of the cup spring arrangement can be modified via an adjusting element that is screwed into the spring channel.
- U.S. Pat. No. 4,489,718 relates to a knee orthosis joint via which the maximum attainable knee angle can be adjusted. A continuous channel is arranged in a base body, in which continuous channel two springs are arranged which engage on a pin of a pivot part mounted in an articulated manner on the base body. By modifying the pretensioning of the springs by way of two adjustment elements that can be screwed in, it is possible to adjust the maximum attainable knee angle both in the direction of flexion and also in the direction of extension.
- U.S. Pat. No. 4,771,768 relates to an ankle orthosis for treatment of ankle fractures. A foot part is secured in an articulated manner on a below-knee rail. A base body is arranged on the below-knee rail, in which base body two metal pins are inserted that can be moved toward or away from projections on the foot part via adjustment screws. The extent of movement and the maximum attainable ankle angle can be adjusted via these metal pins.
- A problem of the prosthesis joints known from the prior art is the fact that they are designed specifically for their respective intended use. It is not possible, or it is possible only with considerable effort, to individually tailor the orthosis joint and adapt it to the specific user and, if appropriate, to any progress that is made in therapy.
- The object of the present invention is to make available an orthosis joint that can be easily tailored to the individual.
- According to the invention, this object is achieved by an orthosis joint having the features of the main claim. Advantageous embodiments and developments of the invention are set forth in the dependent claims, the description and the figures.
- In the orthosis joint according to the invention having a base body which comprises a receptacle for a proximal component, a bearing point for a distal component arranged pivotably on the base body, and limit stops or spring elements which act on the distal component, provision is made that at least one receiving element, in or on which a functional element interacting with the distal component is arranged, is releasably secured to the base body. Whereas in orthosis joints from the prior art the limit stops or spring elements arranged therein are received completely in the base body and are guided therein, provision is made according to the invention that a receiving element for a functional element is secured releasably on the base body, such that the receiving element is exchangeable and adaptable to the individual requirements of the user. It is thereby possible for different functional elements or also different configurations of one functional element, for example of a spring, to be received or guided in the receiving element, so as to permit easy adaptation to the particular requirements.
- The receiving element is advantageously reversibly secured with a form fit to the base body for example via a thread, which is provided correspondingly on the receiving element and on the base body. It is likewise possible to secure the receiving element via a bayonet catch or clips, resilient locking tabs or other form-fit elements.
- The receiving element can be designed as a sleeve with a thread in order on the one hand to secure the receiving element on the base body or on the other hand to position and adjust the functional element inside the receiving element.
- The functional element can be designed as a spring, spring assembly, damper, sensor or limit stop, or a combination of these. The respective receiving element is adapted in form and presentation to the respective functional element; if dampers, springs or spring assemblies are used, the receiving element serves as an external guide for the damper, the spring or the spring assembly. If sensors are used as functional elements, the sensor housing is the receiving element and optionally has interfaces for forwarding sensor data and securing devices for securing it to the base body. Limit stops that define the range of movement in the joint can likewise be arranged in the receiving element. For the adjustable positioning of the respective limit stops, provision is made that adjustment devices are provided on the receiving element, so as to be able to carry out adaptation without having to exchange the limit stop itself.
- Several functional elements can be arranged one behind another in series, in order to combine different functions. For example, a spring and a sensor can be arranged in series in order, as a module, to supply information concerning the applied force or the displacement path. Similarly, serial spring-damper combinations can be used, or springs with different levels of stiffness can be arranged one after another in order to achieve a progressive characteristic curve.
- The functional element can be designed as an inductive sensor, which detects a displacement path permitted, for example, by springs, spring assemblies or dampers, such that the displacement path and/or an angle setting can be determined via the inductive sensor.
- The receiving elements and the functional elements can be designed as an integrated assembly, such that a modular structure of the orthosis joint can be easily obtained. Functional elements are integrated in the respective receiving element or are pre-installed, such that an adaptation and individualization of the orthosis joint can be easily effected by exchange of the functionalized receiving elements.
- Several receiving elements can be arranged one after another in series, for example by a screw connection or other form-fit elements such as a bayonet catch or locking connections. For this purpose, corresponding screws or form-fit elements are provided on the receiving elements that are intended to be coupled to each other, such that an outer thread can be screwed into an inner thread or the corresponding form-fit elements can be locked onto each other, in order either to lengthen the receiving elements for a correspondingly large functional element or to permit a combination of different functional elements with each other. For example, instead of having to keep a stock of several receiving elements in the form of channels with the respectively correct length, it is possible for several short receiving elements to be combined with each other to form a receiving element or a channel of the desired length.
- The receiving element is advantageously inserted in a recess in the base body, in which recess form-fit elements for securing the receiving element are arranged. The form-fit elements can be designed as threads, a guide track for bayonet catches, resilient tongues, projections or the like. From the recess, a channel leads in the direction of the distal component in order to establish an operative connection to the distal component, for example a shoulder of a joint part. Pins, bolts or other pressure elements can be guided through the channel in order to convey forces from the distal component to the functional element. It is likewise possible that the functional element acts directly on the distal component through the channel, for example by springs bearing directly on support surfaces of the distal component or by a limit stop striking a support surface when the maximum angle setting is reached. It is also possible that a sensor detects the position of the distal component relative to the base body through the channel or takes up the forces acting on the distal component. It is thereby possible, for example, to use the joint in a controlled orthosis and to obtain, by way of the sensors, information that is wanted concerning the state of movement, the nature of the movement and the like.
- The receptacle on the base body can be designed as a rail box in which an orthosis rail, for example for a below-knee part or an upper leg part, is secured. It can be secured by clamping and/or by a form-fit engagement, for example via a double screw connection and conically tapering side walls on the rails and/or on the rail box.
- The distal component can be designed as a rail, rail box, shell, foot stirrup or foot support. A foot support is understood as meaning components that engage under the foot, while foot stirrups are components that can also extend parallel to the foot; foot stirrups can end in a foot support.
- The receiving elements are advantageously arranged on both sides of the bearing point, such that the functional elements can be arranged efficiently both in terms of flexion and also extension.
- The receiving element can protrude beyond the contour of the base body such that, when the receiving element is not secured on the base body, it is possible to obtain a slim design of the base body and, therefore, of the whole orthosis.
- Illustrative embodiments of the invention are explained in more detail below with reference to the attached figures, in which:
-
FIGS. 1-5 show various views of a base body without receiving elements; -
FIG. 6 shows a variant ofFIG. 1 , with a limit stop channel screwed in; -
FIG. 7 shows a sectional view ofFIG. 6 ; -
FIG. 8 shows an exploded view ofFIG. 6 ; -
FIG. 9 showsFIG. 8 in a sectional view; -
FIG. 10 shows a sectional view according toFIG. 7 , with receiving elements screwed in on both sides; -
FIG. 11 shows an exploded view ofFIG. 10 ; -
FIG. 12 shows a variant ofFIG. 10 , with spring receptacles screwed in; -
FIG. 13 shows a sectional view ofFIG. 12 ; -
FIG. 14 shows a perspective view of a base body with a sensor screwed in; -
FIGS. 15 to 21 show plan views and sectional views of variants of an orthosis joint. -
FIG. 1 is a plan view showing abase body 10 of an orthosis joint with areceptacle 12 for a proximal component (not shown), for example an orthosis rail, and also abearing point 13 for receiving a pivot shaft on which a distal component (not shown) can be secured pivotably. -
FIG. 2 shows thebase body 10 in a view turned to the right. It will be seen that aslit 11 is formed in thebase body 10, which slit 11 serves to receive the distal component. The webs of thebase body 10, which are arranged on both sides of theslit 11, each have the through-bore for the pivot shaft and form thebearing point 13 for the distal component. -
FIG. 3 shows thebase body 10 in a sectional view with thebearing point 13 and with the two upwardly directed arms of thelateral walls 121, 122 of thereceptacle 12. Thereceptacle 12 is designed as a trough-shaped rail box and, on the bottom wall cut away, has recesses through which form-fit elements, for example screws, can be guided in order to secure an orthosis rail to thebase body 10. - On both sides of the
bearing point 13, recesses 16, 17 in the form of bores are present which, at the proximal end, have form-fit elements fit elements recesses 16, lying opposite the form-fit elements channels - The free passages on both sides of the
bearing point 13 can be seen aschannels FIGS. 4 and 5 .FIG. 4 also reveals the box-shaped design of thereceptacle 12 with the bottom wall and the two forwardly protrudingwalls 121, 122.FIG. 4 likewise shows the form-fit elements FIG. 5 shows thecontinuous channels slit 11 on the distal portion of thebase body 10. - In
FIG. 6 , thebase body 10 of the joint is shown with a fittedproximal component 20 in the form of an orthosis rail. Theorthosis rail 20 is secured to thebase body 10 via screws. In the view inFIG. 6 , two receivingelements base body 10 on both sides of theproximal component 20.Cladding parts 40 are arranged around the receivingelements - In
FIG. 7 , thebase body 10 according toFIG. 6 is shown in a rotated sectional view. Here too, the tworecesses bearing point 13 can be seen, which recesses 16, 17 open into thechannels elements threads FIG. 3 . By means of the receivingelements claddings 40 are also fixed on the base body. -
FIG. 8 shows the variant ofFIG. 6 in an exploded view. It will be seen that thecladdings 40 have a configuration matching the contour of thebase body 10, such that thecladdings 40 supplement the outer contour. As a result of the symmetrical structure, it is possible for the two receivingelements hand recess elements threads outer threads elements claddings 40, with the result that thecladdings 40 are secured on thebase body 10 as the receivingelements -
FIG. 9 showsFIG. 8 in a sectional view. It will be seen that the sleeve-shapedreceiving elements outer threads elements inner threads elements claddings 40 have through-openings, as do the receivingelements elements channels base body 12 and also of thecladdings 40, it is possible to secure therespective receiving elements recesses shorter receiving element 15 is provided to receive a limit stop, while the longer receivingelement 14 is provided to receive a spring assembly. -
FIGS. 10 and 11 show variants ofFIGS. 7 and 9 , in which, instead of along receiving element 14 serving as a spring channel, two receivingelements base body 10. Both receivingelements -
FIGS. 12 and 13 show a variant of the invention in which, instead of two limit stops being screwed in as shown inFIGS. 10 and 11 , two spring channels serving as receivingelements recesses bearing point 13. -
FIG. 14 shows a further variant of the invention in which, in thebase body 10, asensor 70 serving as a functional element is screwed into arecess 16. The sensor housing serves here as receiving element and has an outer thread, which is screwed into theinner thread 160 of thereceptacle 16. At the distal end of thesensor 70, aball 71 is arranged as a contact element which takes up forces from the distal component (not shown) and transmits them to the actual sensor element, which is designed for example as a pressure sensor and has a piezoresistive or capacitive action. Alternatively, thefunctional element 70 can be affixed to a strain gauge in order to determine whether and with what force thedistal component 30 presses against theball 71. In principle, it is also possible forsensors 70 to be installed as functional elements on both sides, so as to record sensor data in each loading direction, in the case of an orthosis joint that is pivotable to both sides from an initial position. In the case of a KAFO or AFO, it is possible in addition to detect a ground contact, the strength of the ground contact, and also a toe-off. -
FIG. 15 shows an orthosis joint in two views with abase body 10 as shown inFIG. 1 . An orthosis rail serving asdistal component 30 is mounted pivotably on thebase body 10, such that a pivotability about thebearing point 13 is provided. In the right-hand view inFIG. 15 , it will be seen that thedistal component 30 forms, to both sides of thebearing point 13, support surfaces 36, 37 which are assigned to thechannels recesses recesses distal component 30. -
FIG. 16 shows an illustrative embodiment in which only one receivingelement 15 is screwed into therecess 17. Asfunctional element 50, a limit stop is provided which is modifiable in position on thelimit stop 50 via the inner thread 150 (not shown for reasons of clarity) and via a corresponding outer thread. It is thereby possible to adjust the maximum attainable pivot angle of thebase body 10 relative to thedistal component 30. -
FIG. 17 shows a side view and a sectional view of a variant of the invention which corresponds to the structure inFIG. 10 with two limit stops 50 screwed in. It will be seen that both limit stops 50 rest on the support surfaces 36, 37 of thedistal element 30, such that the joint does not permit relative movement. -
FIG. 18 shows the variant ofFIG. 12 with two screwed-in spring channels as receivingelements elements distal component 30 viaballs 61. The pretensioning of thesprings 60 can be adjusted viastoppers 142, 152 that can be screwed in. -
FIG. 19 shows the variant ofFIGS. 6 to 9 in the assembled state. The receivingelement 14 serves to receive aspring 60, while the opposite receivingelement 15 serves to receive alimit stop 50. It is thereby possible to permit a rotation about thebearing point 13 in the direction of thespring element 60, while the limit stop 50 blocks a pivoting movement of thebase body 10 in the clockwise direction. -
FIG. 20 shows the receivingelements FIG. 18 . It will be seen from this that, by virtue of the modular structure,different springs 60 can be easily screwed into thebase body 10 and can be fixed thereon. It is thereby possible to fit longer orstronger springs 60, if so desired by the patients. -
FIG. 21 shows a combination of the embodiments ofFIGS. 18 and 20 , where the left-hand receiving element 14 is shorter than the right-hand receiving element, springs 60 as functional elements are arranged in both receivingelements
Claims (21)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/783,601 US20200170821A1 (en) | 2013-07-09 | 2020-02-06 | Orthosis joint |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
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DE102013011382.2A DE102013011382A1 (en) | 2013-07-09 | 2013-07-09 | orthotic |
DE102013011382.2 | 2013-07-09 | ||
PCT/EP2014/001877 WO2015003802A1 (en) | 2013-07-09 | 2014-07-08 | Orthosis joint |
US201614903986A | 2016-01-08 | 2016-01-08 | |
US16/783,601 US20200170821A1 (en) | 2013-07-09 | 2020-02-06 | Orthosis joint |
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PCT/EP2014/001877 Continuation WO2015003802A1 (en) | 2013-07-09 | 2014-07-08 | Orthosis joint |
US14/903,986 Continuation US10555829B2 (en) | 2013-07-09 | 2014-07-08 | Orthosis joint |
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US20200170821A1 true US20200170821A1 (en) | 2020-06-04 |
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US14/903,986 Active 2035-05-03 US10555829B2 (en) | 2013-07-09 | 2014-07-08 | Orthosis joint |
US16/783,601 Pending US20200170821A1 (en) | 2013-07-09 | 2020-02-06 | Orthosis joint |
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US14/903,986 Active 2035-05-03 US10555829B2 (en) | 2013-07-09 | 2014-07-08 | Orthosis joint |
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US (2) | US10555829B2 (en) |
EP (1) | EP3019126B1 (en) |
CN (1) | CN105377199B (en) |
DE (1) | DE102013011382A1 (en) |
PL (1) | PL3019126T3 (en) |
RU (1) | RU2667623C2 (en) |
WO (1) | WO2015003802A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11612506B2 (en) | 2016-05-03 | 2023-03-28 | Icarus Medical, LLC | Unloading knee-ankle-foot orthotic apparatus with conforming and distracting hinge |
Families Citing this family (14)
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US11395753B2 (en) * | 2015-06-12 | 2022-07-26 | Becker Orthopedic Appliance Company | Orthotic joint devices, joint device components, and methods |
US10500081B2 (en) | 2015-06-12 | 2019-12-10 | Becker Orthopedic Appliance Company | Triple action orthotic ankle joint and methods |
DE102016107779A1 (en) | 2016-04-27 | 2017-11-02 | Thomas Böckh | Orthosis joint, modular system for forming a orthotic joint and use thereof |
DE102016108107B4 (en) * | 2016-05-02 | 2020-06-04 | Ottobock Se & Co. Kgaa | Joint for an orthopedic device |
DE102016114834A1 (en) | 2016-08-10 | 2018-02-15 | Otto Bock Healthcare Gmbh | Joint for an orthopedic device |
JP6919293B2 (en) * | 2017-04-11 | 2021-08-18 | トヨタ自動車株式会社 | Orthosis and fitting members used for it |
DE102017122997A1 (en) * | 2017-10-04 | 2019-04-04 | Ottobock Se & Co. Kgaa | Joint for orthopedic equipment |
DE102017128613A1 (en) * | 2017-12-01 | 2019-06-06 | Ottobock Se & Co. Kgaa | Adjustment device and orthosis with an adjustment |
DE102018105482A1 (en) * | 2018-03-09 | 2019-09-12 | Albrecht Gmbh | Orthosis with tool-free fixable lid |
DE102019121797A1 (en) * | 2019-08-13 | 2021-02-18 | Otto Bock Healthcare Products Gmbh | System of spring adapter and orthopedic joint device as well as spring adapter |
DE102020103107A1 (en) | 2020-02-06 | 2021-08-12 | Leibniz-Institut Für Polymerforschung Dresden E.V. | ORTHESIS JOINTS |
DE102020001327A1 (en) | 2020-02-28 | 2021-09-02 | Bernhard Sacherer | Orthosis joint to create a functional position with spring-loaded deflection. |
DE102022116634A1 (en) | 2022-07-04 | 2024-01-04 | REHA - OT Lüneburg Melchior und Fittkau GmbH | orthosis |
DE202022103712U1 (en) | 2022-07-04 | 2022-08-02 | REHA - OT Lüneburg Melchior und Fittkau GmbH | orthosis |
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GB2168106B (en) * | 1984-12-06 | 1987-10-14 | Weston Hydraulics Ltd | Joint for orthotic device |
US4771768A (en) | 1986-12-16 | 1988-09-20 | United States Manufacturing Company | Controlled motion ankle fracture walker |
US4928676A (en) * | 1989-02-27 | 1990-05-29 | Timothy Pansiera | Knee brace with flexible secondary joint |
DE4137057A1 (en) * | 1991-11-11 | 1993-05-13 | Biedermann Motech Gmbh | ADJUSTABLE ORTHOSIS JOINT |
JPH05137742A (en) | 1991-11-14 | 1993-06-01 | Takumi Hino | Joint for human body assisting means and human body assisting means |
RU2092136C1 (en) * | 1994-10-06 | 1997-10-10 | Виктор Абрамович Ишал | Orthopedic prosthesis |
US5899869A (en) * | 1997-12-22 | 1999-05-04 | Barrack, Jr.; Herb J. | Orthopedic appliance with weight activated brake and variable extension assist |
US6080123A (en) * | 1998-09-14 | 2000-06-27 | Pansiera; Timothy Thomas | Orthotic joint with radial hydraulic force transfer |
US6969365B2 (en) * | 2002-04-16 | 2005-11-29 | Scorvo Sean K | Adjustable orthotic brace |
US7507215B2 (en) * | 2005-07-08 | 2009-03-24 | Jri Development Group, Llc | Orthotic brace |
US7578799B2 (en) * | 2006-06-30 | 2009-08-25 | Ossur Hf | Intelligent orthosis |
EP2104475B1 (en) * | 2007-01-05 | 2016-03-09 | Victhom Human Bionics Inc. | Joint actuation mechanism for a prosthetic and/or orthotic device having a compliant transmission |
JP5015118B2 (en) * | 2007-11-16 | 2012-08-29 | 東允 宣 | Spondylolisthesis assist device with angle adjustment unit |
UA87226C2 (en) * | 2007-12-03 | 2009-06-25 | Украинский Научно-Исследовательский Институт Протезирования, Протезостроения И Восстановления Трудоспособности | KNEE JOINT FOR lower extremity ORTHESIS |
DE102010014334B4 (en) * | 2010-04-07 | 2023-08-10 | Fior & Gentz Gesellschaft für Entwicklung und Vertrieb von orthopädietechnischen Systemen mbH | Orthotic joint with two functional means for forming a resilient dorsal stop and a resilient plantar stop |
US9108080B2 (en) * | 2011-03-11 | 2015-08-18 | For You, Inc. | Orthosis machine |
-
2013
- 2013-07-09 DE DE102013011382.2A patent/DE102013011382A1/en not_active Withdrawn
-
2014
- 2014-07-08 CN CN201480039227.5A patent/CN105377199B/en active Active
- 2014-07-08 US US14/903,986 patent/US10555829B2/en active Active
- 2014-07-08 PL PL14738391T patent/PL3019126T3/en unknown
- 2014-07-08 WO PCT/EP2014/001877 patent/WO2015003802A1/en active Application Filing
- 2014-07-08 RU RU2016102711A patent/RU2667623C2/en active
- 2014-07-08 EP EP14738391.3A patent/EP3019126B1/en active Active
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2020
- 2020-02-06 US US16/783,601 patent/US20200170821A1/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11612506B2 (en) | 2016-05-03 | 2023-03-28 | Icarus Medical, LLC | Unloading knee-ankle-foot orthotic apparatus with conforming and distracting hinge |
Also Published As
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RU2667623C2 (en) | 2018-09-21 |
PL3019126T3 (en) | 2018-02-28 |
RU2016102711A (en) | 2017-08-14 |
US20160151190A1 (en) | 2016-06-02 |
WO2015003802A1 (en) | 2015-01-15 |
CN105377199B (en) | 2018-03-09 |
CN105377199A (en) | 2016-03-02 |
RU2016102711A3 (en) | 2018-03-26 |
EP3019126B1 (en) | 2017-09-06 |
US10555829B2 (en) | 2020-02-11 |
EP3019126A1 (en) | 2016-05-18 |
DE102013011382A1 (en) | 2015-01-15 |
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